C-type trailer hook of new structure

Abstract

The utility model discloses a novel structure's C type trailer hook, including main support, main support one end be connected with mounting panel, the other end vertical installation has trailer ball, the upper portion of main support is connected with the base plate through bolt rotation, and the bolt is vertical setting, and the base plate is horizontal setting, and the base plate is fixed with the apron, and the apron, main support and trailer ball enclose one and enclose the annular structure of the loop of the trailer rope, be equipped with the limit slot on the main support, and the base plate is rotatably connected with the locking button through the pivot, and the locking button is equipped with the limit lingual of cooperation limit use of limit slot on, and the spring is equipped between the locking button and the base plate, and the spring one end presses on the locking button, and the other end presses on the base plate, and the elasticity of spring will limit the lingual in the limit slot, and the locking button is equipped with the drive board part, the effect has: novel structure, apron along the bolt of vertical, rotate in the horizontal direction, has saved the installation space of up and down direction.

Description

Technical Field

[0001] This utility model relates to a C-type trailer hitch, and more particularly to a C-type trailer hitch with a novel structure. Background Technology

[0002] The existing C-shaped trailer hitch has a complex structure and many small parts. To attach or detach the towed item, the anti-detachment latch must be forcibly released and the locking pin pulled out before operation can be performed; moreover, the attached anti-detachment latch and locking pin are small parts that need to be threaded with a chain to prevent them from being lost or falling off.

[0003] The existing C-hook has an upward-opening structure. However, most SUVs nowadays have very little space left for the trailer hitch after the external spare tire is installed. This results in insufficient opening space for the upward-opening C-hook, making it unusable. There is an urgent need for a C-hook that requires less space to open. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a new type of C-shaped trailer hook that addresses the shortcomings of the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following measures:

[0006] A novel C-type trailer hitch includes a main bracket. One end of the main bracket is connected to a mounting plate, and the other end is vertically mounted with a trailer ball. A base plate is rotatably connected to the upper part of the main bracket via bolts. The bolts are vertically arranged, and the base plate is horizontally arranged. A cover plate is fixed on the base plate. The cover plate, the main bracket, and the trailer ball form a ring structure for attaching a trailer rope. The main bracket is provided with a limiting groove. A locking button is rotatably connected to the base plate via a rotating shaft. The locking button is provided with a limiting tongue that cooperates with the limiting groove for limiting. A spring is provided between the locking button and the base plate. One end of the spring presses against the locking button, and the other end presses against the base plate. The spring force limits the limiting tongue to the limiting groove. The locking button is provided with a drive plate.

[0007] The bolt is fitted with a spring washer and a flat washer;

[0008] The bolt is fitted with a guide ring, and the upper and lower through holes of the base plate are rotatably fitted outside the guide ring;

[0009] The drive plate and the limiting tongue are located on opposite sides of the rotating shaft, or the drive plate and the limiting tongue are located on the same side of the rotating shaft.

[0010] The cover plate is provided with a clearance groove for driving the locking button to rotate;

[0011] The substrate has a horizontally opened substrate pin hole for mounting the rotating shaft, and the locking button has a horizontally opened button pin hole. The rotating shaft rotates through the substrate pin hole and the button pin hole, and a flat-head bolt is connected to the outer end of the substrate pin hole.

[0012] The limiting groove is a cross-shaped structure, and the main bracket is provided with a threaded hole for a threaded connection bolt, which is located in the middle of the limiting groove of the cross-shaped structure.

[0013] The mounting plate has several through mounting holes.

[0014] The advantages of this utility model are: novel structure, the cover plate rotates horizontally along the vertical bolt, saving installation space in the vertical direction, and can adopt a press-type unlocking structure or an upper-plate unlocking structure. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the pressing operation of this utility model.

[0016] Figure 2 This is a schematic diagram of the external structure of the pressing operation of this utility model.

[0017] Figure 3 This is a schematic diagram of the planar structure of the unlocked state during the pressing operation of this utility model.

[0018] Figure 4 This is a schematic diagram of the planar structure of the locked state during the pressing operation of this utility model.

[0019] Figure 5 This is an exploded structural diagram of the upper lever operation of this utility model.

[0020] Figure 6 This is a schematic diagram of the external structure of the upper lever operation of this utility model.

[0021] Figure 7 This is a schematic diagram of the planar structure of the unlocked state of the lever operation of this utility model.

[0022] Figure 8 This is a schematic diagram of the planar structure of the locking state of the upper lever operation of this utility model. Detailed Implementation

[0023] A novel C-type trailer hitch includes a main support 1. One end of the main support 1 is connected to a mounting plate 2, and the other end is vertically mounted with a trailer ball 3. A base plate 5 is rotatably connected to the upper part of the main support 1 via bolts 4. The bolts 4 are vertically arranged, and the base plate 5 is horizontally arranged. A cover plate 6 is fixed on the base plate 5. The cover plate 6, the main support 1, and the trailer ball 3 form a ring structure 100 for attaching a trailer rope. The main support 1 is provided with a limiting groove 101. A locking button 8 is rotatably connected to the base plate 5 via a rotating shaft 7. The locking button 8 is provided with a limiting tongue 801 that cooperates with the limiting groove 101 for limiting. A spring 9 is provided between the locking button 8 and the base plate 5. One end of the spring 9 presses against the locking button 8, and the other end presses against the base plate 5. The elastic force of the spring 9 limits the limiting tongue 801 within the limiting groove 101. The locking button 8 is provided with a drive plate portion 802.

[0024] like Figure 1-8 As shown, after this utility model is installed on a car via the mounting plate 2, the cover plate 6 is rotated horizontally to one position, revealing the annular structure 100 with an opening. The tow rope is then fitted onto the tow ball 3, and the cover plate 6 is rotated back to its original position, thus securing the tow rope within the annular structure 100. This utility model, with its horizontally rotating cover plate 6 for opening and closing, differs from the previous top-and-bottom flip-top opening and closing method, requiring less vertical operating space and facilitating the installation of rear-mounted spare tires on existing vehicles.

[0025] The bolt 4 is fitted with a spring washer 11 and a flat washer 12.

[0026] A guide ring 13 is fitted on the bolt 4, and the upper and lower through holes 501 of the base plate 5 are rotatably fitted on the outside of the guide ring 13.

[0027] The drive plate portion 802 and the limiting tongue 801 are located on both sides of the rotating shaft 7, or the drive plate portion 802 and the limiting tongue 801 are located on the same side of the rotating shaft 7.

[0028] like Figure 1-4 As shown, the drive plate 802 and the limiting tongue 801 are located on both sides of the rotating shaft 7. This utility model with this structure uses an upper lever operation to unlock the cover plate 6. Specifically, as shown... Figure 8 As shown, in the absence of external force, the locking button 8, under the action of the spring force of the spring 9, causes the limiting tongue 801 to fall into the limiting groove 101. At this time, the entire cover plate 6 and base plate 5 cannot be rotated. When it is necessary to rotate the entire cover plate 6 and base plate 5, simply... Figure 3 As shown, overcoming the elastic force of the spring 9, the drive plate part 802 of the locking button 8 is pressed down, and the locking button 8 rotates clockwise along the rotating shaft 7. The limiting tongue 801 on the locking button 8 disengages from the limiting groove 101, at which point the entire cover plate 6 and the base plate 5 can be rotated.

[0029] like Figure 5-8 As shown, the drive plate 802 and the limiting tongue 801 are located on the same side of the rotating shaft 7. This invention, with this structure, allows for unlocking of the cover plate 6 by pressing. Specifically, as shown... Figure 4 As shown, in the absence of external force, the locking button 8, under the action of the spring force of the spring 9, causes the limiting tongue 801 to fall into the limiting groove 101. At this time, the entire cover plate 6 and base plate 5 cannot be rotated. When it is necessary to rotate the entire cover plate 6 and base plate 5, simply... Figure 7 As shown, overcoming the elastic force of spring 9, the drive plate 802 of the locking button 8 is lifted upwards. The locking button 8 rotates clockwise along the rotating shaft 7, and the limiting tongue 801 on the locking button 8 disengages from the limiting groove 101. At this time, the entire cover plate 6 and base plate 5 can be rotated. Rotating the entire cover plate 6 and base plate 5 exposes the trailer ball 3. After the trailer rope is fitted onto the trailer ball 3, the cover plate 6 and base plate 5 are reset to secure the trailer rope.

[0030] The cover plate 6 is provided with a clearance groove 601 for driving the locking button 8 to rotate.

[0031] The substrate 5 has a substrate pin hole 502 for mounting the rotating shaft 7 in a horizontal direction, and the locking button 8 has a button pin hole 803 in a horizontal direction. The rotating shaft 7 rotates through the substrate pin hole 502 and the button pin hole 803. A flat-head bolt 14 is connected to the outer end of the substrate pin hole 502.

[0032] The limiting groove 101 is in the shape of a cross, and the main bracket 1 is provided with a threaded hole 102 for threaded connecting bolt 4. The threaded hole 102 is located in the middle of the limiting groove 101 in the cross shape.

[0033] The mounting plate 2 has several through mounting holes 201.

[0034] The core of this utility model patent application lies in its innovative design of a horizontally rotating opening and closing mechanism with an integrated locking mechanism, which solves the technical problem of existing C-hook mechanisms being unable to open and close properly in confined spaces (especially in SUVs with externally mounted spare tires). Key advantages include: 1. Optimized space design for convenient installation and operation; 2. An integrated locking mechanism with a reasonable structure, easy to manufacture and assemble; 3. Flexible unlocking methods for easy and quick operation.

Claims

1. A novel C-type trailer hitch, comprising a main support (1), characterized in that: The main support (1) is connected to a mounting plate (2) at one end and a trailer ball (3) is vertically mounted at the other end. A base plate (5) is rotatably connected to the upper part of the main support (1) by bolts (4). The bolts (4) are vertically set, and the base plate (5) is horizontally set. A cover plate (6) is fixed on the base plate (5). The cover plate (6), the main support (1), and the trailer ball (3) form a ring structure (100) for attaching a trailer rope. A limiting groove (101) is provided on the main support (1), and the base plate (5) is... A locking button (8) is rotatably connected via a pivot (7). The locking button (8) is provided with a limiting tongue (801) that cooperates with the limiting groove (101) for limiting. A spring (9) is provided between the locking button (8) and the base plate (5). One end of the spring (9) presses against the locking button (8) and the other end presses against the base plate (5). The elastic force of the spring (9) limits the limiting tongue (801) to the limiting groove (101). The locking button (8) is provided with a drive plate (802).

2. The novel C-type trailer hitch according to claim 1, characterized in that: The bolt (4) is fitted with a spring washer (11) and a flat washer (12).

3. A novel C-type trailer hitch according to claim 1 or 2, characterized in that: A guide ring (13) is fitted on the bolt (4), and the upper and lower through holes (501) of the base plate (5) are rotatably fitted on the outside of the guide ring (13).

4. The novel C-type trailer hitch according to claim 3, characterized in that: The drive plate (802) and the limiting tongue (801) are located on both sides of the rotating shaft (7), or the drive plate (802) and the limiting tongue (801) are located on the same side of the rotating shaft (7).

5. The novel C-type trailer hook according to claim 4, characterized in that: The cover plate (6) is provided with a clearance groove (601) for driving the locking button (8) to rotate.

6. The novel C-type trailer hitch according to claim 5, characterized in that: The substrate (5) is provided with a substrate pin hole (502) for mounting the rotating shaft (7) in the horizontal direction, and the locking button (8) is provided with a button pin hole (803) in the horizontal direction. The rotating shaft (7) rotates through the substrate pin hole (502) and the button pin hole (803). The outer end of the substrate pin hole (502) is connected to a flat head bolt (14).

7. The novel C-type trailer hitch according to claim 6, characterized in that: The limiting groove (101) is a cross-shaped structure. The main bracket (1) is provided with a threaded hole (102) for threaded connection bolts (4). The threaded hole (102) is located in the middle of the limiting groove (101) of the cross-shaped structure.

8. The novel C-type trailer hook according to claim 7, characterized in that: The mounting plate (2) is provided with several through mounting holes (201).

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